The most common technique used to measure oxygen consumption in an exercise physiology laboratory is
A)closed-circuit spirometry.
B)open-circuit spirometry.
C)direct calorimetry.
D)computer calorimetry.

Question

Quizplus · Accepted Answer

Open-circuit spirometry is the most common technique used to measure oxygen consumption in an exercise physiology laboratory because it is relatively simple, non-invasive, and inexpensive. It involves measuring the volume and concentration of expired air to calculate oxygen consumption. Closed-circuit spirometry is less commonly used and involves recirculating expired air. Direct calorimetry measures heat production to calculate energy expenditure, but it is more invasive and expensive. Computer calorimetry involves using mathematical models to estimate energy expenditure based on various inputs, but it is not as accurate as direct calorimetry.

The Most Common Technique Used to Measure Oxygen Consumption in an Exercise